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SignaKey marks can vary greatly in size and be used at both the package and dosage level.

SignaKey can be marked within the wall of glass vials for parenteral products using a femtosecond laser. Every mark is unique and resides on neither the inner nor outer surface of the glass. The laser produces the SignaKey mark by changing the refractive index of the glass within the wall and does so with a guarantee of zero micro-fractures.
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